基于jQuery试卷自动排版系统

站长资源 2024/11/27 佚名

2 0 1

需求
根据提供的试卷题目（是一个干净的只有“数据”的HTML网页）生成一份多页的试卷，用户能执行翻页、具有答题时间限制，展示给用户的试卷中题目需要占用尽量少的空间（比如选择题中把两条较短的选项由两行合并到一行）、同一道题目不要跨页面显示以方便答题者，管理员能够改变试卷的样式（字体、颜色、行距、页面边距，像字处理软件一样……），题目之间可以插入一些说明性的文字（比如告知答题者作答的须知等等）。题目提干、选择题的选项、说明文字可以包含多媒体信息（文字、图片、列表、表格、视频等等……）。选择题选项数目不限、单选多选不限。翻页要有可订制的动画效果

提供的试卷样板类似如下（Input）：
复制代码代码如下:
<ol id="olThePaper">
<div class="Desc">选择题：说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。</div>
<div class="Problem" id="1">
<li>1.你认为怎样的老师是好老师？</li>
<div class="Choices">
<label><input type="radio" name="prob1" value="A" />和学生平等相处，能全面满足学生各种需要</label>
<label><input type="radio" name="prob1" value="B" />所在教学班的成绩优于其他平行班</label>
<label><input type="radio" name="prob1" value="C" />严格管理学生、所带的班级班风良好</label>
<label><input type="radio" name="prob1" value="D" />父母般地关心学生的生活和情绪状态</label>
</div>
</div>
<div class="Problem" id="2">
<li>2.一位有15年教龄的英语教师，教了多年高三，可谓学校的核心骨干。一次接受邀请到外校介绍教学经验，台下有老师发表了观点并问到几个英语教法发面的问题，一下子把她给卡住了。这是因为</li>
<div class="Choices">
<label><input type="radio" name="prob2" value="A" />她最近工作太累，注意力不够集中。</label>
<label><input type="radio" name="prob2" value="B" />提问老师的观点和她的有很大不同。</label>
<label><input type="radio" name="prob2" value="C" />由于长时间在教学一线拼搏，她对教学理论问题的关注度不高。</label>
<label><input type="radio" name="prob2" value="D" />对学科教学的归纳和思考少，一时加工不过来。</label>
</div>
</div>
<div class="Problem" id="3">
<li>3.哪张图片最好看？</li>
<div class="Choices">
<label><input type="radio" name="prob3" value="A" />这一张<img src="/UploadFiles/2021-04-02/img1.png"><label><input type="radio" name="prob3" value="B" />这一张<img src="/UploadFiles/2021-04-02/img2.png"><label><input type="radio" name="prob3" value="C" />这一张<img src="/UploadFiles/2021-04-02/img3.png"><label><input type="radio" name="prob3" value="D" />这一张<img src="/UploadFiles/2021-04-02/img4.png"><label><input type="radio" name="prob3" value="E" />不知道。</label>
</div>
</div>
<div class="Desc">填空题和选择题：一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。</div>
<div class="Problem" id="4">
<li>4.床前明月光，<input type="text" name="prob4" /></li>
</div>
<div class="Problem" id="5">
<li>5.你认为怎样的老师是好老师？</li>
<div class="Choices">
<label><input type="checkbox" name="prob6" value="D" />和</label>
<label><input type="checkbox" name="prob6" value="A" />所</label>
<label><input type="checkbox" name="prob6" value="B" />严</label>
<label><input type="checkbox" name="prob6" value="C" />父</label>
<label><input type="checkbox" name="prob6" value="E" />和班的成绩班的成绩班的成绩班的成绩班的成绩</label>
<label><input type="checkbox" name="prob6" value="F" />所班的成绩班的成绩班的成绩</label>
<label><input type="checkbox" name="prob6" value="G" />严班的班的成绩班的成绩班的成绩班的成绩</label>
<label><input type="checkbox" name="prob6" value="H" />啊</label>
</div>
</div>
</ol>

思路
面对这种需求该怎么办呢？使用JavaScript了，看来。后来决定用jQuery，Aptana作IDE（虽然jQuery支持库在Windows上死活装不上去，换了个OS就好了，奇怪），格式么就用CSS了。

具体步骤：

导入试卷题目HTML
对所有选择题进行排版，把一行划分为四个位置，使选项尽量适应一个位置、两个位置或四个位置（也就是一行四项、一行两项或者一行一项的效果）
对所有题目进行分页
思路还是清晰的，但是由于浏览器众多，还是比较麻烦的，并且我是新手，没接触过jQuery之前……

实现
页面文件（和例子不同，但是格式一样的）

复制代码代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>No title...</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script language="JavaScript" src="/UploadFiles/2021-04-02/jquery-1.4.2.js"><script language="JavaScript" src="lib/countdown/jquery.countdown.pack.js"><script language="JavaScript" src="/UploadFiles/2021-04-02/TestPaperProcessor.js"><link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="divToolbar">
<div id="divPrev">PrevPage</div>
<div id="divNext">NextPage</div>
<div id="divPageInfo">Loading the test...</div>
<div id="divTimer"></div>
</div>
<form id="formPaper" action="demo.html" method="post" accept-charset="utf-8">
<ul>
<div class="Display" id="divLeft">
left
</div>
<div class="Display" id="divRight">
right
</div>
</ul>
<ol id="olThePaper">
<div class="Desc">选择题：说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。</div>
<div class="Problem" id="1">
<li>1你认为怎样的老师是好老师？</li>
<div class="Choices">
<label>
<input type="radio" name="prob1" value="D" />和学生平等相处，能全面满足学生各种需要
</label>
<label>
<input type="radio" name="prob1" value="A" />所在教学班的成绩优于其他平行班
</label>
<label>
<input type="radio" name="prob1" value="B" />严格管理学生/所带的班级班风良好
</label>
<label>
<input type="radio" name="prob1" value="C" />父母般地关心学生的生活和情绪状态
</label>
</div>
</div>
<div class="Problem" id="2">
<li>2你认为怎样的老师是好老师？</li>
<div class="Choices">
<label>
<input type="radio" name="prob2" value="D" />和学生平jlsdjklsdf生各种需要
</label>
<label>
<input type="radio" name="prob2" value="A" />所
</label>
<label>
<input type="radio" name="prob2" value="B" />严格好
</label>
<label>
<input type="radio" name="prob2" value="C" />父母关心学生的生活和情绪状态
</label>
</div>
</div>
<div class="Problem" id="3">
<li>3你认为怎样的老师是好老师？</li>
<div class="Choices">
<label>
<input type="radio" name="prob3" value="D" />和学生平等相处，能全面满足学生各种需要
</label>
<label>
<input type="radio" name="prob3" value="A" />所在教学班的成绩优于其他平行班
</label>
<label>
<input type="radio" name="prob3" value="B" />严格管理学生/所带的班级班风良好
</label>
<label>
<input type="radio" name="prob3" value="C" />父母般地关心学生的生活和情绪状态
</label>
</div>
</div>
<div class="Problem" id="4">
<li>4你认为怎样的老师是好老师？</li>
<div class="Choices">
<label>
<input type="radio" name="prob4" value="D" />和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学生各种需要
</label>
<label>
<input type="radio" name="prob4" value="A" />所在教学班的成绩优于其他平行班
</label>
<label>
<input type="radio" name="prob4" value="B" />严格管理学生/所带的班级班风良好
</label>
<label>
<input type="radio" name="prob4" value="C" />父母般地关心学生的生活和情绪状态
</label>
</div>
</div>
<div class="Desc">还是选择题：一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。</div>
<div class="Problem" id="10">
<li>5你认为怎样的老师是好老师？</li>
<div class="Choices">
<label>
<input type="radio" name="prob5" value="D" />和10学生平等相处，能全面满足学生各种需要
</label>
<label>
<input type="radio" name="prob5" value="A" />所10在教学班的成绩优于其他平行班
</label>
<label>
<input type="radio" name="prob5" value="B" />严10jhjhjhjhkljlkjjkljjkjjkllkjlkjljkjljlkj格管文字
</label>
<label>
<input type="radio" name="prob5" value="C" />父10母般地关心学生的生活和情绪状态
</label>
</div>
</div>
<div class="Problem" id="5">
<li>5你认为怎样的老师是好老师？</li>
<div class="Choices">
<label>
<input type="radio" name="prob5" value="D" />和学生平等相处，能全面满足学生各种需要
</label>
<label>
<input type="radio" name="prob5" value="A" />所在教学班的成绩优于其他平行班
</label>
<label>
<input type="radio" name="prob5" value="B" />严jhjhjhjhkljlkjjkljjkjjkllkjlkjljkjljlkj格管<img src="/UploadFiles/2021-04-02/aaaa9.jpg"></label>
<label>
<input type="radio" name="prob5" value="C" />父母般地关心学生的生活和情绪状态
</label>
</div>
</div>
<div class="Problem" id="6">
<li>6你认为怎样的老师是好老师？</li>
<div class="Choices">
<label>
<input type="radio" name="prob6" value="D" />和
</label>
<label>
<input type="radio" name="prob6" value="A" />所
</label>
<label>
<input type="radio" name="prob6" value="B" />严
</label>
<label>
<input type="radio" name="prob6" value="C" />父
</label>
<label>
<input type="radio" name="prob6" value="E" />和班的成绩班的成绩班的成绩班的成绩班的成绩
</label>
<label>
<input type="radio" name="prob6" value="F" />所班的成绩班的成绩班的成绩
</label>
<label>
<input type="radio" name="prob6" value="G" />严班的班的成绩班的成绩班的成绩班的成绩
</label>
<label>
<input type="radio" name="prob6" value="H" />父
</label>
</div>
</div>
</ol>
</form>
</body>
</html>

样式文件（CSS）
复制代码代码如下:
/* YahooUI CSS Reset */
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,p,blockquote,th,td { padding: 0; margin: 0; }
table { border-collapse: collapse; border-spacing: 0; }
fieldset,img { border: 0; }
address,caption,cite,code,dfn,em,strong,th,var { font-weight: normal; font-style: normal; }
ol,ul { list-style: none; }
caption,th { text-align: left; }
h1,h2,h3,h4,h5,h6 { font-weight: normal; font-size: 100%; }
q:before,q:after { content:''; }
abbr,acronym { border: 0;}

label { padding: 0; margin: 0; }

/* My css */
.Choices { line-height: 150%; margin: 5px 0; }
.Page { height: 500px; border: solid 1px gray; }
#olThePaper, .Display { padding: 0; width: 500px; }
/* NOTICE: the width of .Display and #olThePaper should be the SAME. */
.Display { float: left; }

#divToolbar { height: 35px; }
#divPrev, #divNext { float: left; width: 100px; height: 30px; border: solid 1px green; background-color: #999999; }
#divPageInfo { float: left; width: 100px; height: 30px; }
#divTimer { float: left; width: 500px; height: 30px; }

/*for debugging... perhaps for non-IE only*/
/**label { outline: dotted 1px red; background-color: gray; }**/
/**div {outline: dashed 1px blue;}**/

下面是重点，TTestPaperProcessor.js：
复制代码代码如下:
/**
*
* @param {String} PaperOlId the id value of the ol tags indicating pages.
* @param {String} ProblemClass the css class name for problem area.
* @param {String} DescClass the css class name for description area.
* @param {String} ChoicesClass the css class name for choices area.
* @param {String} LeftPageId the id of the left page.
* @param {String} RightPageId the id of the right page.
* @author ExSystem<exsystemchina@gmail.com>
*/
function TTestPaperProcessor(PaperOlId, ProblemClass, DescClass, ChoicesClass, LeftPageId, RightPageId) {
this.FPaperOlId = PaperOlId;
this.FProblemClass = ProblemClass;
this.FDescClass = DescClass;
this.FChoicesClass = ChoicesClass;
this.FLeftPageId = LeftPageId;
this.FRightPageId =RightPageId;
$('#' + this.FLeftPageId).html('');
$('#' + this.FRightPageId).html('');
this._FormatProblemOptions();
this._DivideIntoPages();
this.setCurrPage(1);
}

TTestPaperProcessor.prototype = {
FPaperOlId: '', //the id property of the ol tag contains the whole test paper.
FProblemClass: '', //the css class name for problem area.
FDescClass: '', //the css class name for description area.
FChoicesClass: '', //the css class name for choices area.
FLeftPageId: '', //the left page.
FRightPageId: '', //the right page.
CPageClass: 'Page',
FIsDisplayTableSupported: null, //whether the browser is the EVIL M$IE6,7 that does not support display: table(-cell).
FCurrPage: 0, //start from 1, 0 for no page has been displayed yet.
FPageCount: 0, //page count.
// /**
// * Get external css stylesheet info.
// * @param {String} Selector The selector in the css style sheet.
// * @param {String} Property The property name.
// * @return {String} The value of the property, or null for undefined property.
// */
// _GetCssInfo: function(Selector, Property) {
// var mCss = document.styleSheets[0].cssRules || document.styleSheets[0].rules;
// for (var mIndex = 0; mIndex < mCss.length; ++mIndex) {
// if (mCss[mIndex].selectorText.toLowerCase() == Selector) {
// return mCss[mIndex].style[Property];
// }
// }
// return null;
// },

/**
* @return {Boolean}
*/
_IsDisplayTableSupported: function() {
if (this.FIsDisplayTableSupported != null) {
return this.FIsDisplayTableSupported;
}

this.FIsDisplayTableSupported = !(jQuery.browser.msie && jQuery.browser.version < 8.0);
return this.FIsDisplayTableSupported;
},

/**
* Formats radios and checkboxes for the Choices quiz.
*/
_FormatProblemOptions: function() {
var mThis = this;
var mSelector = '.' + this.FProblemClass + ' .' + this.FChoicesClass;
$(mSelector).each(function() {
//Rearrange the options for each problem ordered by offsetWidth of the label tag.
var mLabels = new Array();
mLabels = jQuery.makeArray($('label', this));
mLabels.sort(function(First, Second) {
return $(Second).outerWidth(true) > $(First).outerWidth(true);
});
$(mLabels).appendTo(this);

//Layout the options into the appropreate form.
var mSlots = -1; //Force to create a new row, inside the while() loop.
var mSlotWidth = $(mSelector).width() / 4.0;
var mCellSize = 0;
if (mThis._IsDisplayTableSupported()) {
while (mLabels.length > 0) {
//alert($(mLabels[0]).outerWidth(true) + '::' + $(mLabels[0]).outerHeight(true) + '::' + $(mLabels[0]).html());
if (mSlots <= 0) { //If no empty slot, create a new row.
mCurrRow = $('<div class="___table" style="display: table;"></div>');
mCurrRow.appendTo(this);
mSlots = 4;
mCellSize = 0;

var mRealCellWidth = $(mLabels[0]).outerWidth(true);
if (mRealCellWidth < mSlotWidth) {
mCellSize = 1;
}
if (mRealCellWidth >= mSlotWidth && mRealCellWidth < mSlotWidth * 2) {
mCellSize = 2;
}
if (mRealCellWidth >= mSlotWidth * 2) {
mCellSize = 4;
}
}
mSlots -= mCellSize;
if (mSlots >= 0) { //If empty slots exists, put the cell into the row.
mLabel = mLabels.shift();
$(mLabel).addClass('___cell');
$(mLabel).css('display', 'table-cell');
$(mLabel).appendTo(mCurrRow);
}
}
$('.___table').each(function() { //Align all the tables and cells.
$(this).css('width', '100%');
var mCellWidth = 100 / $('.___cell', this).length;
$('.___cell', this).css('width', mCellWidth + '%');
});
}
else { // for the evil M$IE6, use table, tr, td tags.
while (mLabels.length > 0) {
if (mSlots <= 0) { //If no empty slot, create a new row.
mCurrRow = $('<table class="___table" cellspacing="0" cellpadding="0"></table>');
mRow = $('<tr></tr>');
mRow.appendTo(mCurrRow);
mCurrRow.appendTo(this);
mSlots = 4;
mCellSize = 0;

var mRealCellWidth = $(mLabels[0]).attr('offsetWidth');
//The EVIL IE only:
//be sure to use this css reset: table { border-collapse: collapse; border-spacing: 0; }
//otherwise, 2 lines will be occupied by some long problem options instead of 1.
//or use this code instead: var mRealCellWidth = $(mLabels[0]).attr('offsetWidth') * 1.3;
if (mRealCellWidth <= mSlotWidth) {
mCellSize = 1;
}
if (mRealCellWidth > mSlotWidth && mRealCellWidth <= mSlotWidth * 2) {
mCellSize = 2;
}
if (mRealCellWidth > mSlotWidth * 2) {
mCellSize = 4;
}
}
mSlots -= mCellSize;
if (mSlots >= 0) { //If empty slots exists, put the cell into the row.
mLabel = mLabels.shift();
mCell = $('<td class="___cell"></td>');
$(mLabel).appendTo(mCell);
mCell.appendTo($('tr', mCurrRow)[0]);
}
}
$('.___table').each(function() { //Align all the tables and cells.
$(this).css('width', '100%');
var mCellWidth = 100 / $('tbody tr .___cell', this).length;
$('tbody tr .___cell', this).css('width', mCellWidth + '%');
});
}
});
},

/**
* Create a new page, and add it to the paper.
* @return {jQuery} the new page.
*/
_CreateNewPage: function() {
++this.FPageCount;

mPage = $('<div class="' + this.CPageClass + '" id="___page_' + this.FPageCount + '"></div>');
mPage.appendTo($('#' + this.FPaperOlId));

return mPage;
},

/**
*
* @param {Number} PageNumber
* @return {jQuery}
*/
_GetPage: function(PageNumber) {
if (PageNumber < 1 || PageNumber > this.FPageCount) {
throw new Error('invalid page number: ' + PageNumber + '.');
}
return $('#___page_' + PageNumber);
},

/**
*
*/
_DivideIntoPages: function() {
var mProblems = $('.' + this.FProblemClass + ', .' + this.FDescClass);
var mProblemsCount = mProblems.length;
var mCurrPage = this._CreateNewPage();
//var mPageHeight = mCurrPage.attr('offsetHeight'); chrome: sometimes 0. safari: always 0, IF PUTTED IN $(window).ready().
var mPageHeight = mCurrPage.outerHeight(true); //the same as the code above. FIX: PUT IT INTO $(window).load().
var mUsedPageHeight = 0;
for (var mCurrProblem = 0; mCurrProblem < mProblemsCount; ++mCurrProblem) {
if (mUsedPageHeight + $(mProblems[mCurrProblem]).outerHeight(true) > mPageHeight) {
mCurrPage.hide();
mCurrPage = this._CreateNewPage();
mPageHeight = mCurrPage.outerHeight(true);
mUsedPageHeight = 0;
}
$(mProblems[mCurrProblem]).appendTo(mCurrPage);
mUsedPageHeight += $(mProblems[mCurrProblem]).outerHeight(true);
}
mCurrPage.hide();
},
/**
* Get the current page of the left side, started from 1.
* @return {Number} The current page.
*/
getCurrPage: function() {
if (this.FPageCount == 0) {
throw new Error('No page has been created yet.');
}
return this.FCurrPage;
},
/**
* Trun to a specific page in the left side.
* @param {Number} Value The page number.
*/
setCurrPage: function(Value) {
if (Value < 1 || Value > this.FPageCount) {
throw new Error('No such page: ' + Value + '.');
}
this.FCurrPage = parseInt(Value / 2) * 2 + 1; // to get an odd number.
$('#' + this.FLeftPageId + ' .' + this.CPageClass).hide();
$('#' + this.FRightPageId + ' .' + this.CPageClass).hide();
if (this.FCurrPage >= 0) {
$('#___page_' + this.FCurrPage).appendTo($('#' + this.FLeftPageId));
$('#___page_' + this.FCurrPage).show('fast');
if (this.FCurrPage < this.FPageCount) {
++this.FCurrPage;
$('#___page_' + this.FCurrPage).appendTo($('#' + this.FRightPageId));
$('#___page_' + this.FCurrPage).show('fast');
--this.FCurrPage;
}
}
},
/**
* @retrun {Number}
*/
getPageCount: function() {
return this.FPageCount;
},
/**
*
*/
Prev: function() {
this.setCurrPage(this.FCurrPage - 2);
},
/**
*
*/
Next: function() {
this.setCurrPage(this.FCurrPage + 2);
}
};

//client code goes here...
$(window).load(function() {
var obj = new TTestPaperProcessor('olThePaper', 'Problem', 'Desc', 'Choices', 'divLeft', 'divRight');
$('#divPrev').click(function() {
try {
obj.Prev();
$('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());
}
catch (e) {
alert('No such page!');
}
});
$('#divNext').click(function() {
try {
obj.Next();
$('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());
}
catch (e) {
alert('No such page!');
}
});
//USAGE: http://keith-wood.name/countdown.html
function TimeUp() {
$('#formPaper').submit();
}
$('#divTimer').countdown({
until: '+90m',
compact: true,
format: 'HMS',
description: '',
onExpiry: TimeUp
});
$('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());
});

嘿嘿，其实这是一个俺们学校一位博导老师的项目的一部分～～托给我做了。马上要出门了，回来放源文件下载，就可以看到效果了～～昨天回来太晚了，现在放出源代码文件下载：点击此处
/201007/yuanma/TestPaperProcessor.rar

jQuery,试卷,自动排版

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